• 1N746A-1 THRU 1N759-1 AVAILABLE IN JAN, JANTX AND JANTXV 1N746 thru 1N759A and PER MIL-PRF-19500/127 • 1N4370A-1 THRU 1N4372A-1 AVAILABLE IN JAN, JANTX AND JANTXV PER MIL-PRF-19500/127 1N746A-1 thru 1N759A-1 and 1N4370 thru 1N4372A and • DOUBLE PLUG CONSTRUCTION 1N4370A-1 thru 1N4372A-1 • METALLURGICALLY BONDED MAXIMUM RATINGS Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C DC Power Dissipation: 500 mW @ +50°C Power Derating: 4 mW / °C above +50°C Forward Voltage @ 200mA: 1.1 volts maximum ELECTRICAL CHARACTERISTICS @ 25°C JEDEC NOMINAL ZENER MAXIMUM MAXIMUM TYPE ZENER TEST ZENER REVERSE CURRENT ZENER NUMBER VOLTAGE CURRENT IMPEDANCE IR@ VR CURRENT VZ @ 1ZT 1ZT (NOTE 1) (NOTE 2) (NOTE 3) MAXIMUM 1 ZM ZZT@ 1ZT VOLTS mA OHMS µA VOLTS mA 1N4370A 2.4 20 30 100 1.0 155 1N4371A 2.7 20 30 60 1.0 140 1N4372A 3.0 20 29 30 1.0 125 1N746A 3.3 20 28 5 1.0 120 1N747A 3.6 20 24 3 1.0 110 1N748A 3.9 20 23 2 1.0 100 1N749A 4.3 20 22 2 1.0 90 1N750A 4.7 20 19 5 1.5 85 1N751A 5.1 20 17 5 2.0 75 1N752A 5.6 20 11 5 2.5 70 1N753A 6.2 20 7 5 3.5 65 1N754A 6.8 20 5 2 4.0 60 1N755A 7.5 20 6 2 5.0 55 1N756A 8.2 20 8 1 6.0 50 1N757A 9.1 20 10 1 7.0 45 1N758A 10.0 20 17 1 8.0 40 1N759A 12.0 20 30 1 9.0 35 FIGURE 1 DESIGN DATA CASE: Hermetically sealed glass case. DO – 35 outline. LEAD MATERIAL: Copper clad steel. LEAD FINISH: Tin / Lead THERMAL RESISTANCE: (ROJEC): 250 ˚C/W maximum at L = .375 inch THERMAL IMPEDANCE: (ZOJX): 35 ˚C/W maximum NOTE 1 Zener voltage tolerance on "A" suffix is +5%. No Suffix denotes + 10% tolerance, "C" suffix denotes + 2% tollerance and "D" suffix denotes + 1% tolerance. NOTE 2 Zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25°C + 3°C. NOTE 3 Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal to 10% of 1ZT POLARITY: Diode to be operated with the banded (cathode) end positive. MOUNTING POSITION: Any. 22 COREY STREET, MELROSE, MASSACHUSETTS 02176 PHONE (781) 665-1071 FAX (781) 665-7379 WEBSITE: http://www.cdi-diodes.com E-mail: [email protected] 1N746 1N759A 1N4370 1N4372A Pd, Rated Power Dissipation (mW) thru and thru INCLUDING -1 VERSIONS 500 400 300 200 100 0 0 25 50 75 100 125 150 175 TL, Lead temperature (C°) 3/8” from body POWER DERATING CURVE 100 ZENER IMPEDANCE ZZT (OHMS) 50 20 10 5 2 1 4 6 10 20 40 60 100 FIGURE 3 operating current (mA) ZENER IMPEDANCE VS. OPERATING CURRENT